Requires a big sample size a. sampling error b. quota sampling e sampling frame d. money e cluster sampling f. stratified sampling g. 1920 Literary Digest h. population i. probability sampling j. snowballing k. whole nation subject

Requires a big sample size a. sampling error b. quota sampling e sampling frame d. money e cluster sampling f. stratified sampling g. 1920 Literary Digest h. population i. probability sampling j. snowballing k. whole nation subject

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A population is? Choose the correct letter. A. taken from the sample B. the same as sample. C. all items of interest in a particular study.
7.2.29-T Question Help An IQ test is designed so that the mean is 100 and the standard deviation is 19 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 99% confidence that the sample mean is within 6 IQ points of the true mean. Assume that o = 19 and determine the required sample size using technology. Then determine if this is a reasonable sample size for a real world calculation. The required sample size is. (Round up to the nearest integer.)
You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 95% confident that the sample percentage is within 5.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. n = (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 34% of air passengers prefer an aisle seat. n = IDound un to the nearest integer)
3) A principal of a local high school wants to select 30 students from a student body of 600 students. He wants the proportion of students in each grade level to be the same in the sample as it is in the entire school. Describe how he could make a stratified sample if there are 100 freshmen, 160 sophomores, 200 juniors, and 140 seniors. Show all work. Write final answer in sentence form. o
2
Find the sample mean for the following data set 82,52,59,41,59,53,69,30
PREREQUISITE. Determine the percentage of the following numbers. a. 20 is what percent of 100? b. 30 is what percent of 600? ENGAGEMENT: You are to conduct a sampling method using SHS students as your respondents. Using Slovin's formula, calculate how many respondents should be your sampling size in each strand if you are given 10% allowable error. Show your solutions. STRAND ABM GAS HUMMS ICT STEM POPULATION SIZE 162 371 190 53 145 SAMPLING SIZE
You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 90% confident that the sample percentage is within 5.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 38% of air passengers prefer an aisle seat. (Round up to the nearest integer.)
Shown below are the lengths in minutes of 6 randomly selected Disney movies. Use the data to compute each of the items requested. Don't forget to put units on your answers. Bambi 69 Cinderella 74 The Rescuers 78 Dumbo 64 Monsters, Inc 92 Wall E 98 What is the sample mean?
Find the population mean or sample mean as indicated. Population: 8, 9, 11, 10, 7 Select the correct choice below and fill in the answer box to complete your choice. OA. x= OB. H=
The length (in words) of seven articles from a particular newspaper are listed below. Find the mean, median, and mode of the data, if possible. If any of these measures cannot be found or a measure does not represent the center of the data, explain why. 1153 1125 1371 817 1277 O A. The mean word count is 1229 Find the mean word count. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to one decimal place as needed.) B. There is no mean word count. 1278
You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 95% confident that the sample percentage is within 1.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. n= (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 38% of air passengers prefer an aisle seat. @ 2 S n= (Round up to the nearest integer.) x дв nd # 3 E D BO C $ R F V 5 T G 6 B Y H 7 N *99 U J . 8 DHE I M ( 9 K be O O L 1 P command Time Remaining: 01:09:52 > ; I { [ option ? | . Next 1 delete